Early American humans hunted car-size armadillos and used their shells for houses.
12
The cat brain weighs about 30g.
167
Meysi is one of the world's smallest dogs, measuring in at just 7cm tall, 12cm long, and weighing a meagre 250 grams (only slightly heavier than a hamster!)
11
There's a lizard known as the 'Jesus Lizard' that can run across water.
11
Vampire bats adopt orphans, and are one of the few mammals known to risk their own lives to share food with less fortunate roost-mates.
402
Squirrels forget where they hide about half of their nuts.
698
Dire wolves actually existed, living up to 10,000 years ago before going extinct.
10